Oscillating engine



5 Sheets-Sheet 1.

(No Model.)

J. MOSS.

OSGILLATING ENGINE.

No. 479,012. Patented July 19, 1892.

(No ModeLf 5 Sl1eet sSl1eet 2,

J. MOSS.

'OSOILLATING ENGINE.

No. 479,012. Patented July 19, 1892.

WITNESSES (No Model.) 5 Shee-tsSheet 3.. J. MOSS.

v OSGILLATING ENGINE. No. 479,012. Patented July 19, 1892.

WITNESSES 1. V VEN TOQ? THE mm: warms co., motMJmm, wmmmara, u. 01

5 Sheets-Sheet 4.

(No Model.)

J. MO.SS.. OSGILLATING ENGINE.

Patented July 19, 1892.

WITNESSES 5 sheets sheet 5.

(No Model.)

J MOSS OSOILLATING ENGINE.

No. 479,012. Patented July 19, 1892.

INVENTOQ? WITNESSES NITED STATES A'IENI Enron.

JULIAN MOSS, OF DETROIT, MICHIGAN, ASSIGNOR OF TWO-THIRDS TO EDIVARDRICHARD BLANOHARD AND HOLDEN 13. WHITE, OF SAME PLACE.

OSCILLATING ENGINE.

SPECIFICATION forming part of Letters Patent No. 479,012, dated July 19,1892.

Application filed December 11, 1891. Serial No. 414,671. (No model.)

To aZlwhom it may concern:

Be it known that I, JULIAN Moss, of Detroit, in the county of Wayne andState of Michigan,have invented certain-new and useful Improvements inOscillating Engines, of which the following is a full, clear, and exactdescription.

This improvement relates to that class of oscillating engines in whichthere are two pistons with a Valve set between them; and the inventionconsists in the peculiar construction, arrangement, and combinations ofparts hereinafter more particularly described and then definitelyclaimed.

Figure 1 represents a side View of an engine constructed according to myimprovement; Fig. 2, a front View of the same; Fig. 3,21. centralvertical transverse section of the cylinder and its immediate connectingparts. Fig.4 is a similar view of parts of the same, taken at rightangles to that shown in Fig. 3.' Fig. 5 is a section through the valveand part of the cylinder, showing it giving steam to the top section ofthe cylinder and exhausting from the bottom. Fig. 6 is a similar sectionshowing the steam passing into the bottom section and exhausting fromthe top. Fig. 7 is a similar section with the valve arranged to reversethe engine. Fig. 8 is a side 'view with the cylinder in section. v

Referring now to the details of the drawings by letters and figures, Arepresents the standards of the engine, having bearings B, in which runsthe main shaft 0, carrying a face-plate D and wrist-pin or crank d, towhich is connected the piston-rod E, carrying pistons e e and passingthrough the stuffing-boxes g g on the valve-box G and through anaperture h in the valve H.

The valve-box is provided with trunnions I I, mounted in suitablebearings B at the upper part of the standards, and carries the sectionsjj of the cylinder J, which sections are boltedthereon, but of coursemay be cast with the valve-box, if preferred.

For convenience in inserting the valve I usually cast one of thetrunnions separately from the valve-box and bolt or screw these partstogether after the valve is inserted. To

allow of this being done, such trunnion is provided with a flange i, asshown in Fig. 2.

The valve is preferably of conical form and is provided at its centerwith a division h, in which is formed the aperture h for the pur posebefore explained, and in order that the valve may be shifted for thepurpose of reversing the engine the aperture is enlarged at top andbottom, as shown in Fig. 8 and in dotted lines in Fig 4. At each end ofthe valve is a hollow pipe (indicated by K K) forming the steam andexhaust passages and passing through the trunnions I I and into glands LL, which form, with the hollow trunnions I I, stuffing-boxes to keep theends of the trunnions steam-tight. The tops of these glands are providedwith bosses Z Z, into which the steam and exhaust pipes MM are screwed,and below are petcocks NN to discharge the water of condensation. Theseglands are secured by studs 0 and nuts 0, so as to tighten the packingin the stuffing-boxes should the steam escape at these points. The pipeat the exhaust end of thevalve runs through the gland and through a capQ (which, with the gland L, also forms a stuffing-box) and has its outerend closed and provided with a square stud R to receive thereversing-lever P, which is held thereon by a screw S or by any otherconvenient means. The lower end of this leler is broadened and slotted,as shownin Fig. 1, to receive a screw-stud T, by means of which and thenut t the lever may be held in any desired position.

Instead of setting the petcock E into the bottom of the gland I connectit by means of a T U and nipple u, so as to allow of the setting of thestud I into the T, as shown in Fig. 2.

The inlet side of the valve is provided with ports 1, 2, and 3, and theexhaust has ports 4, 5, and 6, which are so arranged as to register withports 7, 8, 9, and 10, as desired.

The operation of an oscillating engine is so well understood that itseems almost unnecessary to describe this, and it will therefore besufficient to say that in the position shown in Fig. 5 steam is enteringthe top section of the cylinder and pushing up the piston, while theexhaust is passing out of the lower section of the cylinder. As thecrank passes around the position of the cylinder is changed to thatshown in Fig. 6, when steam enters the lower section and the top sectionis exhausting. If it is desired to reverse the rotation of the shaft,the lever is changed to the position shown in Fig. 7, when the valveWill assume the position shown in said Fig. 7, and the shaft of theengine will then run in theopposite direction.

From the above description it will be seen that I have produced areversing engine that is very simple, is cheaply built, not likely toget out of order, of great power in proportion to its size, and runswith but little friction.

What I claim as new is- 1. An oscillating engine having two pistons,

JULIAN MOSS.

Witnesses:

I. SCULLY, WALTER WRIGHT.

